component
BZT52B15-E3-18
Public Made by Adomby adom
Vishay Intertech Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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BZT52B15-E3-18
Vishay Intertech · Zener Diodes · SOD-123
BZT52B15-E3-18 from Vishay Intertech, in a SOD-123. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage (BZT52B15, 2 % tolerance) | VZ | 14.7 | 15 | 15.3 | V | IZT1 = 5 mA; pulsed tp = 5 ms; Tamb = 25 °C | 3 |
| Reverse voltage at IR | VR | 11 | V | IR = 100 nA | 3 | ||
| Dynamic resistance at IZT1 | ZZ | 30 | Ω | IZT1 = 5 mA | 3 | ||
| Dynamic resistance at IZT2 | ZZK | 110 | Ω | IZT2 = 1 mA | 3 | ||
| Temperature coefficient of VZ | αVZ | 7 | 9 | 10-4/°C | 3 | ||
| Admissible Zener current at Tamb = 45 °C | IZ | 25 | mA | Tamb = 45 °C; electrodes kept at ambient temperature | 3 | ||
| Admissible Zener current at Tamb = 25 °C | IZ | 29 | mA | Tamb = 25 °C; electrodes kept at ambient temperature | 3 | ||
| Power dissipation | Ptot | 500 | mW | RthJL = 250 K/W | 1 | ||
| Power dissipation on FR-4 board | Ptot | 300 | mW | On FR-4 board with recommended soldering footprint | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 | ||
| Operating temperature range | Top | -55 | 150 | °C | 1 | ||
| Thermal resistance junction to lead | RthJL | 250 | K/W | 1 | |||
| Thermal resistance junction to ambient | RthJA | 420 | K/W | According to JEDEC 51-3 on FR-4 board with recommended soldering footprint | 1 |
CAD (KiCad official)
- Symbol:
BZT52B15-E3-18 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52b15-e3-18-etched.step/bzt52b15-e3-18-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52b15-e3-18.step/bzt52b15-e3-18.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (7 pp, sha256
7d87ffefebce9caf, retrieved 2026-10-21, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# BZT52B15-E3-18
**Vishay Intertech** · Zener Diodes · SOD-123
BZT52B15-E3-18 from Vishay Intertech, in a SOD-123. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage (BZT52B15, 2 % tolerance) | VZ | 14.7 | 15 | 15.3 | V | IZT1 = 5 mA; pulsed tp = 5 ms; Tamb = 25 °C | 3 |
| Reverse voltage at IR | VR | 11 | | | V | IR = 100 nA | 3 |
| Dynamic resistance at IZT1 | ZZ | | 30 | | Ω | IZT1 = 5 mA | 3 |
| Dynamic resistance at IZT2 | ZZK | | 110 | | Ω | IZT2 = 1 mA | 3 |
| Temperature coefficient of VZ | αVZ | 7 | | 9 | 10-4/°C | | 3 |
| Admissible Zener current at Tamb = 45 °C | IZ | | 25 | | mA | Tamb = 45 °C; electrodes kept at ambient temperature | 3 |
| Admissible Zener current at Tamb = 25 °C | IZ | | 29 | | mA | Tamb = 25 °C; electrodes kept at ambient temperature | 3 |
| Power dissipation | Ptot | | | 500 | mW | RthJL = 250 K/W | 1 |
| Power dissipation on FR-4 board | Ptot | | | 300 | mW | On FR-4 board with recommended soldering footprint | 1 |
| Junction temperature | Tj | | | 150 | °C | | 1 |
| Storage temperature range | Tstg | -65 | | 150 | °C | | 1 |
| Operating temperature range | Top | -55 | | 150 | °C | | 1 |
| Thermal resistance junction to lead | RthJL | | 250 | | K/W | | 1 |
| Thermal resistance junction to ambient | RthJA | | 420 | | K/W | According to JEDEC 51-3 on FR-4 board with recommended soldering footprint | 1 |
## CAD (KiCad official)
- Symbol: `BZT52B15-E3-18`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52b15-e3-18-etched.step` / `bzt52b15-e3-18-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52b15-e3-18.step` / `bzt52b15-e3-18.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Vishay Intertech datasheet](docs/bzt52b15-e3-18-datasheet.pdf) (7 pp, sha256 `7d87ffefebce9caf`, retrieved 2026-10-21, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/bzt52b15-e3-18-datasheet.pdf)